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|
---
tags:
- v2
search:
boost: 2
---
Using the timestamp flag is simple. Please refer to
[`time.Parse`](https://golang.org/pkg/time/#example_Parse) to get possible
formats.
<!-- {
"args": ["--meeting", "2019-08-12T15:04:05"],
"output": "2019\\-08\\-12 15\\:04\\:05 \\+0000 UTC"
} -->
```go
package main
import (
"fmt"
"log"
"os"
"github.com/urfave/cli/v2"
)
func main() {
app := &cli.App{
Flags: []cli.Flag{
&cli.TimestampFlag{Name: "meeting", Layout: "2006-01-02T15:04:05"},
},
Action: func(cCtx *cli.Context) error {
fmt.Printf("%s", cCtx.Timestamp("meeting").String())
return nil
},
}
if err := app.Run(os.Args); err != nil {
log.Fatal(err)
}
}
```
In this example the flag could be used like this:
```sh-session
$ myapp --meeting 2019-08-12T15:04:05
```
When the layout doesn't contain timezones, timestamp will render with UTC. To
change behavior, a default timezone can be provided with flag definition:
```go
app := &cli.App{
Flags: []cli.Flag{
&cli.TimestampFlag{Name: "meeting", Layout: "2006-01-02T15:04:05", Timezone: time.Local},
},
}
```
(time.Local contains the system's local time zone.)
Side note: quotes may be necessary around the date depending on your layout (if
you have spaces for instance)
|
